How much does Samsung Electronics owe Apple Inc. for copying vital features of the iPhone and iPad?

Apple Inc. says $380 million. Samsung counters with $52 million.

It's possible a jury presiding over a patent trial in a San Jose courtroom will find somewhere in between.

The first day of testimony in the trial got underway on Wednesday. At issue are 13 Samsung devices another jury decided infringed Apple Inc. patents for technology that allows scrolling and the "bounce-back" function at the end of documents, among other inventions.

That previous jury awarded Apple Inc. $1.05 billion after determining 26 Samsung products had infringed six Apple Inc. patents. But a judge found the jury miscalculated $400 million in damages for 13 products and ordered a new trial to determine the proper amount.

"Apple lost sales because Samsung was selling infringing products," Apple attorney Harold McIlhenny told the jury during opening statements. He argued that Apple's lost profits, Samsung's profits on the offending devices and royalties owed Apple, add up to $380 million.

"In a fair fight, in a fair competition, the money they got would have and should have gone to Apple," McIlhenny said.

Samsung's attorney Bill Price countered during his own opening statements that consumers preferred Samsung's devices, which operate with Google's Android system, because of the many differences - rather than the similarities - they have with Apple's products. Price told the jury that Samsung owes Apple $52 million.

"Apple Inc. is simply asking for much more money than it's entitled to," Price said.

Price readily conceded that Samsung was guilty of copying Apple's features, but downplayed the significance of the technology in devices that are built with hundreds of patents each.

"This is a case not where we're disputing that the 13 phones contain some elements of Apple Inc.'s property," Price said. "That doesn't mean Apple gets to come in here and ask for a windfall ... for more than it is entitled."

Apple Inc. called three expert witnesses and a company executive to discuss Apple's patents Wednesday before court ended for the day. The trial is expected to last into the middle of next week.

The two companies are locked in legal battles around the globe for supremacy in the more than $300 billion smartphone market.

The current trial is a dispute over older products, most of which are no longer sold new in the United States.

Another trial is scheduled in San Jose in March over Samsung's devices currently on